One of the four "moves" is to "investigate the source". The following two short videos (less than four minutes) will introduce you to this move. As you'll see, we're not expecting people to do ground-breaking research, just to do some very quick checks.
The first (3:15) video shows how many of the things we think will make us better at the web — raw intelligence, critical thinking skill, familiarity with technology — don't necessarily help:
https://www.youtube.com/watch?v=yBU2sDlUbp8
The second video (2:45) introduces you to our second move: investigate the source. (In case you forgot the first move already, the first move is "Stop")
https://www.youtube.com/watch?v=hB6qjIxKltA
Next up: Just add Wikipedia
Sifting: Alexa-enabled toilet? (prompt)